Results 21 to 30 of about 7,075,558 (291)
Effect of Weather Change and Plant Age on the Whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) on Tomato Plants and its Control in Dakhlia Region, Egypt [PDF]
Journal of Plant Protection and PathologyThis experiment was carried out in two consecutive seasons (2022/2023 and 2023/2024) at Mansoura district of the Dakhlia Governorate, Egypt, to investigate population of the whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) on tomato plants ...
Eman Shehata +2 more
doaj +1 more source
Certified Population Estimates, July 2019 [PDF]
, 2019 Certified Population Estimates for Oregon and Its Counties.
Portland State University. Population Research Center
core +2 more sources
, 2021 A poster designed for conference presentation by our Population Estimation project team. This highlights key aspects of their work towards sustainable census independent population estimation in Mozambique.
openaire +2 more sources
Administrative Data Based Population Estimates for Scotland.
International Journal of Population Data Science, 2022 In December 2021, we published statistical research on Administrative Data Based Population Estimates (ABPEs) for Scotland’s population in 2016, 2017 and 2018.
David Rowley, Caroline Ellis
doaj +1 more source
Australian and New Zealand Journal of Public Health, 2015 Objective: To compare the use of two alternative population‐based denominators in calculating HPV vaccine coverage in Australia by age groups, jurisdiction and remoteness areas. Method: Data from the National HPV Vaccination Program Register (NHVPR) were
Bianca Barbaro, Julia M.L. Brotherton
doaj +1 more source
Making hidden biases visible in population location data from mobile phonesMaking hidden biases visible in population location data from mobile phones [PDF]
Royal Society Open ScienceTraditional sources of population data, such as censuses and surveys, are costly, infrequent and often unavailable in crisis-affected regions. Mobile phone data (MPD) offer near-real-time, high-resolution insights into population distribution, but their ...
Carmen Cabrera, Francisco Rowe
doaj +1 more source
Estimating population dynamics without population data [PDF]
Journal of Environmental Economics and Management, 2013 Abstract We develop a biologically correct cost system for production systems facing invasive pests that allows the estimation of population dynamics without a priori knowledge of their true values. We apply that model to a data set for olive producers in Crete and derive from it predictions about the underlying population dynamics.
Robert G. Chambers, Vangelis Tzouvelekas
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Population Estimates for Oregon 1980-1991 [PDF]
, 1992 This report provides population estimates for Oregon and its counties and cities for the years 1980 through 1991. As mandated by Oregon law, the Center for Population Research and Census at Portland State University, acting on behalf of the State Board ...
Population Research Center, Portland State University
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The Estimation of Biological Populations
The Annals of Mathematical Statistics, 1954 Abstract : A number of statistical models, underlying the methods used in the estimation of the sizes and other parameters of animal population, are set up. The relevant estimation equations are given, with their variances and covariances. For the most part, the theory is designed for large populations.
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Entropy Regularization for Population Estimation
Proceedings of the AAAI Conference on Artificial Intelligence, 2023 Entropy regularization is known to improve exploration in sequential decision-making problems. We show that this same mechanism can also lead to nearly unbiased and lower-variance estimates of the mean reward in the optimize-and-estimate structured bandit setting. Mean reward estimation (i.e., population estimation) tasks have recently been shown to be
Ben Chugg +3 more
openaire +3 more sources